Granted Patent
Utility
US 5,918,803 · App. 08/836,683
Power regulating system for the burner of a heater
Inventors:
Wolfgang Pfister, Peter Reiser
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Dec 19, 1997
Inventors
Wolfgang Pfister
Peter Reiser
Assignee (at issue)
J. Eberspaecher GmbH & Co. KG
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.